Wall panel for a portable restroom



FIG. 1 is a perspective view of a wall panel for a portable restroom, the broken line portion of the portable restroom is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a perspective view of the outside of the wall panel for a portable restroom of FIG. 1;

FIG. 3 is a front view of the wall panel for a portable restroom of FIG. 2;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a side view of FIG. 3

FIG. 6 is a rear view of a wall panel for a portable restroom of FIG. 2; and,

FIG. 7 is a top view of FIG. 6. 

The ornamental design for a wall panel of a portable restroom, as shown. 